冀东位于华北克拉通东部古陆核的中段，是连接太古宙典型区鞍本地区和鲁西-胶东地区之关键所在。在冀东的黄柏峪-羊崖山地区，已发现2.9-3.4 Ga不同类型变质深成岩和大量3.35-3.88 Ga碎屑锆石，~2.5 Ga 岩浆作用和变质作用在更大范围内十分发育。本项目以黄柏峪-羊崖山地区为主要对象，同时顾及相邻地区（迁安片麻岩区和安子岭杂岩），开展深入的地质、锆石微区U-Pb定年和Hf-O同位素分析及与全岩元素和Nd同位素研究。以发现中-始太古代物质（岩石和锆石）为主要目的；建立冀东地区太古宙构造岩浆年代格架；确定新太古代晚期构造热事件地幔添加和壳内再循环作用相对强度；建立新太古代晚期构造热事件变质温压条件和PTt轨迹；确定新太古代晚期构造环境。所取得成果不但可极大地深化冀东地区太古宙地质研究，对认识整个华北克拉通，特别是东部古陆核也具有重要的科学意义。

Eastern Hebei, located in the middle part of the Eastern Ancient Continental Nucleus of the North China Craton, is a key area linking Anshan-Benxi in the north and eastern-western Shandong in the south where Archean basement rocks widely occur. In the Huangbaiyu-Yangyashan area, eastern Hebei, different types of meta-magmatic rocks of 2.9-3.4 Ga and abundant detrital zircons of 3.35-3.88 Ga have been identified. ~2.5 Ga magmatism and metamorphism were well developed in wider areas. This project will carry out geological, zircon-in-situ U-Pb dating and Hf-O isotope and whole-rock element and Nd isotope studies mainly in Huangbaiyu-Yngyashan as well as adjacent areas (Qian'an gneiss and Anziling complex). The main purposes include: 1) Discover Mesoarchean to Eoarchean rocks and zircons, 2) establish Archean tectono-magmato-chronological framework; 3) determine the relative intensity of juvenile crustal addition and crustal recycling in the late Neoarchean tectono-thermal event; 4) set up the P-T conditions and PTt path in the late Neoarchean tectono-thermal event; 5) determine late Neoarchean tectonic environment in eastern Hebei. The results obtained in this study not only can deepen realizing the Archean geological features of eastern Hebei, but also are of important significance for thoroughly understanding the North China Craton ( especially the Eastern Ancient Continental Nucleus).